Modern casino Slots are controlled by computer chips and software, and the win %s are pre-programmed into the computer software.
Casino one armed bandits have Random Number Generators which are continuously generating combinations, even when the game is not active.
Running in sync with the Random Number Generator of the casino slot machine game is the pay out percent.
The pay out per cent controls just how much the one-armed bandit will pay, for eg the pay per cent could be 90%, meaning the slot machine game will payout ninety per cent of all the bets played, … the casino gets to keep ten percent.
This is not to say that every time you bet 10 credits you will receive nine in return – where is the fun and excitement in that? Instead, the casino slot machine just will not payout for a bit, and then suddenly start up a hot streak and you might hit a big top prize.
The pay out %s will most likely vary between the a variety of games and some of the extremely common casinos, for e.g Golden Online Casino, which offers a payment of up to ninety five percentage!
As a result, in essence, the one-armed bandit takes all the cash played into it and pays it out to a couple of chosen winners. The casino only gets to keep a averagely small per cent of all the bets made.
The casino slot machine software controls each part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which connects with the pictures on the reel.